baber/WOPTO huggingface dataset:
Patent JP-H02303073-A (JP)
Title: Semiconductor photodetector
Inventor: ITO KAZUHIRO
IPC: H01L31/107
Filed: 1989-05-17
Abstract: PURPOSE:To obtain a photodetector of low noise, high sensitivity, and high speed, by forming, in order, a layer whose forbidden bandwidth is smaller than that of a multiplying layer and a layer whose forbidden bandwidth is larger than that of the multiplying layer, on the light incidence side, and making the width of a depletion layer be the whole region of the small forbidden bandwidth layer and a region reaching a part of the multiplying layer. CONSTITUTION:From the surface of a layer 36 to a substrate 31, a conical stand is etched, and an SiNx film 37 is stuck on the surface; a P-type electrode 38 is formed on the whole surface of the rear of the substrate 31; a ring-shaped N-type electrode 39 is formed on the upper surface of the layer 36. While projecting light from a light receiving window inside the electrode 39, a backward voltage is applied between the electrodes 38, 39. Layers 32-35 turn to depletion layers, and the greater part of light absorption is executed by the layer 35. The layers 32, 33 act as multiplying layers. The layer 36 turns to a window layer for transmitting light, and the layer 31 turns to a transmitting layer for the component which has not been subjected to light absorption. The layer 34 acts as a relaxation layer for adjusting electric field intensity distribution.
Patent JP-H07331071-A (JP)
Title: Polyphenylene sulfide resin composition
Inventor: KAKITA HIDETO
IPC: C08L81/02
Filed: 1994-06-02
Abstract: PURPOSE:To provide a resin composition containing a polyphenylene sulfide having high crystallinity and a specific melting point, having high crystalllzation velocity giving a molded article having excellent heat-resistance and useful for thermal tools, electrical and electronic parts, etc. CONSTITUTION:This resin composition contains a high-melting polyphenylene sulfide having a melting point of >=350 deg.C. The polyphenylene sulfide preferably has the recurring unit of the formula and a degree of polymerization of 100-400. It can be produced by heat-treating polyphenylene resin powder derived from p-dichlorobenzene and sodium sulfide in nitrogen atmosphere under nitrogen pressure of 150atm at 290 deg.C for a whole day and night. A molded article having excellent heat-resistance can be molded at a low mold temperature.
Patent JP-S60264126-A (JP)
Title: Automatic tuning circuit in plasma equipment
Inventor: HOSHI YUKIO
IPC: H03H7/40
Filed: 1984-06-13
Abstract: PURPOSE:To obtain an automatic tuning circuit with ease of tuning by which a detection circuit is regulated easily by providing separately a coil for detecting resistance component and a coil for detecting reactance component while being parted to avoid linking. CONSTITUTION:A matching circuit 7 and a detection circuit 5 detecting a resistance component VR and a reactance component of a load are provided between an input terminal 4 of a reaction tube 3 of a plasma vapor-deposition device and an output terminal 2 of a high frequency high voltage power supply, and in an automatic tuning circuit 1 adjusting the said matching circuit 7 automatically based on the detected rsistance component VR and reactance component VjX, the coil L1 detecting the resistive component and the coil L2 detecting the reactive component are provided separately while being parted so as not to be linked together. The automatic tuning of the matching circuit 7 is executed by energizing respectively motors M1, M2 of a control circuit 6 based on the detected resistance component VR and reactance component VjX to turn variable capacitors C1, C2 of the matching circuit 7.
Patent JP-S5346418-A (JP)
Title: Low melting point alloy
Inventor: SUZUKI TOSHIHARU
IPC: C22C28/00
Filed: 1976-10-08
Abstract: PURPOSE: To provide a low m.p. alloy for a cell reactionsystem or the like by combining Ga base with In, Sn and Zn and Cd, Pb, Sb, Te, B, Al, Ag, etc. in the form of eutectic or peritectic alloy. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H10302575-A (JP)
Title: Waterproof switch
Inventor: KOSHIBA TOMITAKA
IPC: H01H21/08
Filed: 1997-04-24
Abstract: PROBLEM TO BE SOLVED: To provide a waterproof switch in which waterproof performance is superior, durability is high, and operation performance is excellent. SOLUTION: Two switch main bodies 1a, 1b which have moving portions 2a, 2b moving free in the vertical direction inside a housing respectively. An elastic body film 7 which is made of an elastic boy of such predetermined thickness as waterproofing a housing inside covers over a housing surface portion 5 on which the moving portions of the respective switch main bodies are positioned. An operating elastic body 14 which has a flat plate-like sandwiching portion 15 and is equipped with operating protrusions 14a, 14b protrusively formed so as to be respectively touchable to the moving portions of the respective switch main body via the elastic film and elastic portions 14c, 14d elastically hold the operating protrusions is provided on the elastic body film.  An operation portion 9 of an approximately toggle shape which sandwiches the operating elastic body 13 with a surface panel 13 and is provided on the surface panel 13 to be turnable so as to press the operation protrusions is provided.
Patent JP-H05135417-A (JP)
Title: Magneto-optical memory element
Inventor: HIROKANE JUNJI
IPC: G11B11/10
Filed: 1992-05-14
Abstract: PURPOSE:To provide the constitution of the magneto-optical memory element which can effectively suppress oxidation of a thin film of an amorphous magnetic material. CONSTITUTION:A transparent thin film 2 consisting of SiO, SiO2, Si3N4, etc., is formed on a transparent substrate 1 consisting of glass, acrylic resin, etc., and a thin film 6 of the amorphous magnetic material contg. Ti is formed thereon. The thin film 6 of the amorphous magnetic material consists of rare earth-transition metal alloys, such as GdTbFe, TbDyFe, GdCo, TbFe, and GdTbDyFe, and further, a reflection film 5 consisting of Cu, Al, Au, Ag, etc., are provided thereon.
Patent JP-H04327496-A (JP)
Title: Multi-stage retractable boom device
Inventor: NAKAJO TOSHIHIRO
IPC: B66C13/12
Filed: 1991-04-25
Abstract: PURPOSE:To reduce the cross-sectional area of a boom of a multi-stage retractable boom device such as that for a high place working vehicle, which can pay out a cable or the like from the proximal end of the boom to the forward end of the boom through the inside of the boom. CONSTITUTION:A boom extending cylinder device 6 is connected between a first boom and a second boom as forward end booms 2. There are provided a coupling member 16 which is coupled to the inner side wall of the rear end part of a third boom 3 at a position below the boom extending cylinder device, and which is extended in the first to third booms 1, 2, 3, substantially parallel with the axis of the boom extending cylinder device, and a second boom extending pulley 15 attached to the rear end of the second boom at a position in rear of the rear end of the boom extending cylinder device, substantially coaxial with the latter, and having a diameter greater than that of the same. With this arrangement, a cable or the like can be vertically laid along the coupling member, the second boom extending pulley 15 and the boom extending cylinder device.
Patent JP-S63287306-A (JP)
Title: Interlocking device for grounded truck
Inventor: FUJI KAZUHIKO
IPC: H02B11/02
Filed: 1987-05-19
Abstract: PURPOSE:To interlock distribution boards in complex facility system perfectly through single grounded truck by piecing a shutter board with a rod interlocked with a key interlock device thus locking the shutter board. CONSTITUTION:A key interlock device 3 is fixed to the side wall of a board 1, where a rod 32 is allowed to project when a key 31 is rotated and when the rod 32 has fully projected, the key 31 is pulled out. A guide hole 2a for inserting the rod 32 at an inserting position is made through the side face of a grounded truck 2. Another guide hole 4a for inserting the rod 32 at a position where a board side shutter board 4 contacts a striker 21 arranged on the grounded truck 2 and lifted is made between the rod 32 and the grounded truck 2. A throw-in prevention board 5 is suspended in front of a box 22 for containing an operating push button of a grounded truck circuit breaker and coupled with a link 7 which contacts a striker 6 and pushed down. Furthermore, a shutter board 8 to be penetrated with the rod 32 when the circuit breaker is closed is applied on the side face of the grounded truck 2.
Patent JP-2000314806-A (JP)
Title: Production of electrically conductive color filter
Inventor: SHIMIZU TAKASHI
IPC: G02B5/20
Filed: 1999-04-28
Abstract: PROBLEM TO BE SOLVED: To unnecessitate a transparent electrically conductive film on a color filter. SOLUTION: A striped transparent electrically conductive film 2 is formed on a glass substrate 1 to produce a substrate for liquid crystal display. This substrate is brought into contact with an aqueous electrodeposition fluid containing a colorant and electric current is supplied to electrochemically change the hydrogen ion concentration. By this change, the colorant is deposited on the transparent electrically conductive film of the substrate for liquid crystal display to form an electrically conductive electrodeposited film and the objective simple matrix type electrically conductive color filter is produced.
Patent JP-S612021-A (JP)
Title: Oil level gage
Inventor: NAGATA TERUHIDE
IPC: G01F23/04
Filed: 1984-06-15
Abstract: PURPOSE:To simplify an inspection work and to enable an oil check surely by holding a level gage on the upper part of an oil liquid surface at non-measurement time in an oil level gage inspecting the quantity of an engine oil, etc. for automobile. CONSTITUTION:An oil level gage 2 is made by inserting the main body 3 of level gage into a cap 4. The main body 3 of the gage makes the upper part a holding part 6a and the lower part a measuring part 7. The cap 4 of the oil level gage 2 is fitted to a guide pipe 1 and the gage measuring part 7 is pushed out from the guide pipe 1 and put into an oil 13 and the oil quantity is measured. A spring 10 is also provided between the outer lid 4c and inner bottom 4b of the cap 4 thereof. At non-measurement time (A) the gage measuring part 7 is pushed up by the spring 10 and at measurement time (B) the spring 10 is pushed to dip the measuring part 7 in the oil 13. Since the gage measuring part is not dipped in the oil at non measurement time, the work of wiping out the measuring part is therefore made unnecessary.
Patent JP-H02300903-A (JP)
Title: Driving method for unmanned vehicle
Inventor: TANIOKU HARUO
IPC: G05D1/02
Filed: 1989-05-16
Abstract: PURPOSE:To attain a start in a step part and to attain a floor travel with steps by shifting an unmanned vehicle in an anti-proceeding direction for a prescribed distance and progressing it again in a normal proceeding direction when a state where start is impossible occurs for the prescribed time owing to the steps of a floor surface. CONSTITUTION:When the unmanned vehicle does not progress within the prescribed time, it shifts in the anti-proceeding direction and progresses again in the normal proceeding direction. When the vehicle does not proceed from an initial start point even if the action is repeated for three times, it stops there. That is, when an encoder which is in a starting state and which is provided in a driving wheel is not counted for a prescribed time, a driving motor is reversely rotated, the vehicle is detached from the step part. Then it is started again in the normal proceeding direction and it is driven so that it gets over the steps by using inertia. Thus, the floor travel with steps is attained by a motor capacity adjusted to a flat travel.
Patent JP-S5815638-A (JP)
Title: Device for equalizing pressure load of slider for machine tool
Inventor: GI RUUZOO
IPC: B23Q11/00
Filed: 1982-07-15
Abstract: An apparatus for making the pressure exerted by a machine-tool carriage on its slide uniform. Cams which load springs are used to apply pressure to the carriage in those regions subject to less pressure depending upon the position of the carriage. Distortion of the tool carriage slide surface and resulting inaccuracies in the machine operation are thus reduced.
Patent JP-H11317003-A (JP)
Title: Disk player and vibration detecting method of the same
Inventor: EGUCHI TOYOKAZU
IPC: G11B7/24
Filed: 1998-05-01
Abstract: PROBLEM TO BE SOLVED: To provide a disk drive capable of accurately detecting the size of vibration caused by disk mass eccentricity without using any sensor parts for vibration detection. SOLUTION: A disk is driven by a low double-speed, and the number of tracks crossed by the beam spot of an optical pickup 3 at this time is obtained as the number of traversing tracks equivalent to the mass eccentricity of the disk. When the number of traversing tracks exceeds a first threshold, the disk is rejected as off-specification one. Also, the disk is driven at a high double- speed, the number of traversing tracks by the beam spot is obtained, the number of traversing tracks at the time of the low double-speed is subtracted from the number of traversing tracks at the time of the high double-speed, and a remaining value is obtained as the quantity of vibration caused by disk mass eccentricity.
Patent JP-H07331960-A (JP)
Title: Door on-off detector
Inventor: NAKAMURA SATOSHI
IPC: E05F15/20
Filed: 1994-06-03
Abstract: PURPOSE:To eliminate any detection miss of a photosensor by fitting a guide rod in a notch part, intercepting an optical path by way of sliding, and delivering a close signal from a shutter mechanismic part and an open signal due to separation of the guide rod from the notch part, respectively. CONSTITUTION:At the time of being unfitted into an engaging hole 17 in a shutter plate 16 of a guide rod 4, this shutter plate 16 is energized downward by dint of a spring, exposing a light receiving element 8 to an upper end of this shutter plate 16. Therefore, a photosensor opens its optical path L, coming into a first operating state to deliver an open signal. On the other hand, if a door 2 is closed, the guide rod 4 is fitted in the engaging hole 17 of the shutter plate 16 by way of a notch part 3, and the shutter plate 16 goes up in an arrow (b) direction due to inclination of the engaging hole 17, closing the light receiving element 8. Next, it comes to a second operating state to deliver a close signal in intercepting the optical path L of the photosensor. Subsequently the door 2 is reopened, making the guide rod 4 come into contact with the engaging hole 17, and it contacts with an incline at the opposite side in time of door closing, whereby the shutter plate 16 is forcibly pressed down in an arrow (a) direction, opening the optical path L of the photosensor.
Patent JP-S5548850-A (JP)
Title: Magnetic recording and reproducing unit
Inventor: SAKAI KOUICHI
IPC: G11B15/03
Filed: 1978-10-03
Abstract: PURPOSE: To surely stop the tape automatically at a desired position at reproduction and to block unnecessary automatic stop at recording, by blocking the operation stop instruction caused by the control means in response to the electric display of  amount of tape running at recording.  
     CONSTITUTION: The amount of tape running is displayed on the display unit 8 via the direction of rotation discrimination circuit 5 and up down counter 6, and the display resetting the counter 6 via the switch S 1  is zero at the desired tape position, and the logic discrimination circuit 10 produces stop instruction. Then, the tape is stopped with over run, reproduction operation instruction is made at rewinding before stop, rewinding operation instruction if fast feed, and reproduction operation instruction is made at stop after re-over running. In either case, when the display is zero at reproduction, the tape is quickly and surely stopped automatically with the stop signal by the control means of the circuit 10. On the other hand, the circuit 10 is controlled with the operation instruction from the operation mode instruction circuit 11, the output of the stop operation instruction caused at required time from the control means of the circuit 10 is blocked at recording and unnecessary automatic stop of tape is not made at recording. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5645102-A (JP)
Title: Plow
Inventor: KORUNERISU BAN DERU RERAI
IPC: A01B9/00
Filed: 1980-09-05
Abstract: A plough comprising a frame that is provided with means (52) for attaching the plough to a three point hitch of a tractor and comprises at least two power driven turning devices (31) for turning furrow slices. 
<??>The two power driven turning devices (31) are arranged in the frame in such a way that they are working adjoining strips of ground and are postioned so that in side view they are in, or are almost in overlapping relation to each other. 
<??>The power driven turning devices (31) are turning the furrow slices during operation mainly about their longitudinal axis and are delivering said furrow slices at the rear of the devices onto the ground.
Patent JP-S63289858-A (JP)
Title: Radiation image processing device
Inventor: TSUJI TAKAFUMI
IPC: H04N5/33
Filed: 1987-05-21
Abstract: PURPOSE:To stabilize an operation and to improve the quality of an image by satisfying a specific relationship among the junction capacitance of a photodiode, the junction capacitance of a coupling diode on the side of a signal processing device and the stray capacitance between a high-concentration diffusion part of the coupling diode and a control electrode of an MIS photogate. CONSTITUTION:A signal processing device contains the following: an MIS signal- charge storage part corresponding to each sensor of a radiation sensor array 1; a signal-charge injection circuit composed of a diffusion layer connecting this signal-charge storage part to an output terminal of each sensor and of an MIS gate used to transfer a signal charge of this diffusion layer to the signal-charge storage part. A relationship as shown in the formula is to be satisfied when the junction capacitance of each p-n junction of the sensor array 1 is designated as CD, the junction capacitance between the diffusion layer of the signal-charge injection circuit and a substrate of the signal processing device is designated as CS, and the electrostatic capacitance between the diffusion layer and a control electrode of an MIS gate is designated as Cgs. By this setup, it is possible to stabilize an operation and to improve the quality of in image.
Patent JP-H05218558-A (JP)
Title: Method and device for stabilizing frequency and output of laser by utilizing secondary beat signal between laser longitudinal mode
Inventor: JIYO GOUSEI
IPC: H01S3/10
Filed: 1992-04-16
Abstract: PURPOSE: To stabilize frequency and output of a laser by using a secondary beat signal between three vertical modes, as an identifying signal for stabilization of a laser frequency or laser output. CONSTITUTION: A secondary beat signal detected from a photodetector 2 is converted to a voltage signal, which is proportional to a secondary beat frequency by using a frequency-voltage converter 3. A length of a laser resonator is controlled so as to make a voltage of the voltage signal constant. Light of a laser luminous flux, emitted from a laser 1 which oscillates at three vertical modes, is partially reflected from a luminous flux splitter 4 raised at an angle close to vertical with respect to luminous flux, turned by a mirror 6 after passing through a deflection element 5, injected to the photodetector 2 and subjected to photodetection.  Then, a control signal passes through the frequency-voltage converter 3 through a band-pass filter 7 in a frequency band wherein a secondary beat signal can be detected, the length of a resonator is automatically controlled by an automatic servo control device 8 and an output is stabilized simultaneously, together with frequency of the laser.
Patent JP-S60264289-A (JP)
Title: Thermal recording magnetic ticket paper
Inventor: WATANABE TOSHIYUKI
IPC: B41M5/333
Filed: 1984-06-14
Abstract: PURPOSE:To obtain excellent thermal color developability, a sharp color image and excellent plasticizer resistance and a head matching property, by using specific dioxaheptane as a coupler and providing a specific coating layer onto a thermal color forming layer. CONSTITUTION:1,7-di(p-hydroxyphenylthio)-3,5-dioxaheptane is used as a coupler and a coating layer containing modified polyvinyl alcohol, glyoxal modified polyacrylic acid and an org. filler is provided onto a thermal color forming layer. The polymerization degree of polyacrylic acid is 1,000 or less and the amount to be used of glyoxal is generally 0.5-10pts.wt. of polyacrylic acid. As modified polyvinyl alcohol, carboxyl group modified polyvinyl alcohol is especially suitable. As the org. filler, a phenol resin, a urea-formalin resin, polycarbonate, a melamine resin, polystyrene or polypropylene are pref. adapted.
Patent JP-2000314697-A (JP)
Title: Spin polarization scanning tunnel microscope
Inventor: KODAMA HIROKI
IPC: G01N37/00
Filed: 1999-04-28
Abstract: PROBLEM TO BE SOLVED: To irradiate a new crystal surface having always good surface state with a laser beam and to continue stable tunneling of a spin polarization electron by providing a probe rotating mechanism and/or optical path scanning mechanism. SOLUTION: This spin polarization scanning tunnel microscope comprises, for example, a probe rotating mechanism 19 for pseudo-rotating a probe 18 by a piezo element and an optical path scanning mechanism 16 having a mirror and a piezo element. When a lockin detection signal obtained by detecting a tunnel current by a lockin amplifier 26 is weakened, a voltage is applied to the piezo element of the mechanism 16, a laser beam 14 is scanned on a GaAs crystal surface of the probe 18, and measuring is restarted at a position where the signal becomes large. If the signal is not increased even by scanning by the mechanism 16, the mechanism 19 is rotated so that the beam 14 is emitted to the crystal surface different from that before rotating the probe 18.
Patent JP-H01293188-A (JP)
Title: Water treatment unit provided with dipping filter bed for catalytic oxidation
Inventor: IIDA KATSUMI
IPC: C02F3/06
Filed: 1988-05-19
Abstract: PURPOSE:To enable easy transformation into a catalytic oxidation device by setting a circulation plate in a filter bed frame in an aeration tank so as to partition the frame, laying an aeration pipe at the lower part of one side of the partitioned frame and arranging filter bed plates each made of a steel pipe or a net at the other side at regular intervals. CONSTITUTION:A circulation plate 2 is perpendicularly set in a filter bed frame 1 so as to partition the frame 1 with communication at the lower part. An aeration pipe 4 is laid at the lower part of one side of the partitioned frame 1 and filter bed plates 10 each made of a steel pipe or a net are arranged at the other side within the range from the top of the frame 1 to the bottom of the plate 2 at regular intervals to form a dipping filter bed.